Power generator



May 25 1926.-

c. KIESTER POWER GENERATOR Filed March 24 192 n0 Wa Z m m w m w W flPatented May 25, 1926.

nurrsn srarss CARL KIESTER, OF YEAGER, OKLAHQMA.

POWER GENERATOR.

Application filed March 24, 19-24. Serial No. 701,478.

This inventionrclates to powerunits, and more particularly to turbineunits, such as steam turbines.

Cne of the objects of this invention is to f provide such a power unithaving a novel arangement of governor niechamsm which is iple toconstruct and effective in operation. 7

Another object is to provide such a unit in "which the. governormechanism is so located s not to be subject to corrosion or otherdeterioration of its bearing surfaces and the like.

Another object is to provide such a unit in which the governor mechanismis simple and requires no adjustments.

Further objects will appear from the de tail description taken inconnection with the accompanying drawing, in which:

Figure 1 is a view in elevation, partly in.

section. showing aturbine unit embodying this invention; and

Figure 2 is a detail of the governor mounting taken on line 2-2, Figure1.

Referring to the accompanying drawing, 1 designates a base orpedestalwhich supports the unit. This base is provided with bearings 2and 3 which carry the operating shaft constructed in sections. Thisoperating shaft comprises a turbine shaft a workingin the bearing 2 anda driven shaft 5 working in the bearing 3. The power receiving device 6which may be a belt wheel, a grinding wheel, or other device to bedriven, is mounted on the outer end of the driven shaft as shown inFigure 1.

The pedestal 1 may be provided with a plate 7 on which 1s mounted acasing 8 adapted to house theturbine wheel or runnor 9 mounted on theturbine shaft 4. The casing is provided with nozzles or jet openings 10connnunicating with the supply duct 12 for directing the power supplyingfluid, such as steam, against the vanes of the wheel 9. One or more jets10 may be provided according to the power to be devel oped. Anexhaustconduit- 11 leads the spent fluid from the casing 81 The turbineshaft 41 extends through the bearing 2 to the outside of the casing. Onthe outside of the casing it is connected to the driven shaft 5 by meansof a telescopic connection. The shaft 5 is provided with a reducedportion 13 and provided at its end with a plug or cross-head 14; adaptedto fit within the bore 15 ofthe llol Qw turbine sha t? A pr g tenors.

head 14 so as to urge the shaft 4 to the left.

' Figure 1, in order to maintain the wheel 9 in normal position inalinement with the jets 10. It will be understood that the shaft 5 isrestrained from longitudinal movement in the bearing 3 by the collars 17and 18. The shaft 4 is provided with a head 19 providing a shoulderadapted to abut against the hearing 2 to limit the movement of the shaftl to the left, Figure 1, and to position the turbine wheel 9. A splitcollar r cap 20 is adapted to fit the reduced portion 13 of the drivenshaft and is rigidly fixed to the head 19 so as to retain the head 1 1within the bore It will be clear that the shafts 4: and 5 are thusconnected by a loose telescopic connection so" as to permit longitudinalsliding movement of the turbine shaft 1 in the bearing 2 for a purposewhich will be described presently. tluch longitudinal movement is,however, opposed by pressure of the spring 16. i

clamped between the head 19 and the split collar 20 is a resilient plate21 whose tapered ends extend radially in opposite dis rections from theshaft. The outer ends of the plate 21 are bent laterally as illustratedin Figure 1. Rigidly fixed to the shaft 5 by means of a pin 22 or othersuitable fas tening is a collar 23 provided-with a shoulder 2%. A plate25 similar to the plate 21 is mounted on the collar 23 and clamped tothe shoulder 2 1 by means of a collar 26 as illustrated in Figure 1. Theplate 25 is similar in form to the plate 21 and has radially 1 extendingends bent laterally in a similar manner but in the opposite directionfrom that of the plate 21. Thus it will be seen that the plate 25 isrigidly secured to the shaft 5, while the p ate 21 1s rigidly secured tothe head 19 and the shaft 4:. Mounted between the extended ends of theplates 21 and 25 is a pair of centrifugal elements or governor weights27. The weights 2? are rigidly secured to both plates 21 and 25 by meansof bolts 28 or other suitable fas The plates 21 and 25 are thus rigidlysecured together through the governor weights 27 and since these platesare rigidly secured to the shafts 1 and 5 respectively, a drivingconnection is thus estabcircumferential direction so that it is capubico torque, yet permits by its tiexi rlVC: longitudinal movelu other words2 while fi on may torque from the shaft to l; and 5.

be transmit the shaft In the operation of this device the driving fluidbeing admitted to the casing through the l0 w'll impinge upon the vanesof the turbine wheel 9 so as to drive the same in rotation. The turbinewheel through its shaft -l and the connections 21, 235 will then drivethe shaft 5 and the power receiving device (5. its the speed ofrevolution app catches a predetermined point, the cent'rif al force ofthe governor weights 2?, being exerted radially outwardly, will tend toexpand the flexible frame comprising the connections 21, Since theseconnections are resilient, such expansion takes place and will beaccompanied by a corresponding contraction of the frame a longitudinaldirection witl respect to the shafts. Such contraction will have theeffect of drawing the shaft to the right, Figure 1, sliding the same inthe bearing 2. The shaft 5 will not move as it is confined bc tween thecollars 17 and 1S. the shaft 4; moves to the right, the wheel 9 movingtherewith will gradually pass out of registry with the jets 10. Uponpassing out of registr the power delivered to the wheel 9 by the jetswil be correspondingly diminished and hence the speed will becorrespondingly reduced. Upon reduction of the speed, the centrifugalforce exerted by the we" ;lits 2. will also be reduced and theresilience of the frame 21, assisted by the pressure of the spring 16will operate to return the wheel 9 to its normal position in registrywith the jets 10. It will be clear, therefore, that by properlyadjusting the resilience of the at th .J

name 21, 25 and the spring 16, the governor can be made to maintain thespeed of rotation substantially constant at a predetermined value.

It will be noted that in accordance with the presentinvention thegovernor mechanism )ltlCGCl entirely outside of the casing which housesthe turbine wheel. The worting parts of the governor mechanism are thusremoved from liability of corrosion, such as does occur in devices wherethat mechanism is placed within the steam charnher. The steam invariablycarries with it certain impurities which are injurious to the metalparts and operate to corrode and roughen the bearing surfaces and renderthe operation ofthe device erratic and unreliable. Iii-accordancewiththis invention,

struct, requires no adjustments.

and is reliable andetteetiv iu'itsoperation;

It is obvious that various changes may be made in details ofconstruction without doparting from the spirit of this invention; it is,therefore, to be understood that this invention is not to be limited tothe specific details shown and described.

Q .aving thus described the invention, what is claimed is:

l. The combination with a casing having a fluid jet th rein a turbinewheel in the casing and cooperating with the jet and apowertrausuiitting member driven by the wheel and in fixed alinement, ofgovernor mechanism crnnprising, a centrifugal clement outside of thetasing, and a yielding connection between said element and the wheel,adapted to move the wheel relatively to the jet withoutdisturbing thealinement of the power-transmitting member.

The combination with a casing having a fluid jet therein and a turbinewheel in the casing and cooperating with the jet and api:-wcr-transmitting member driven by the wheel and in fixed alinement,of governor mechanism comprising, a turbine shaft slidable in the casina driven shaftloos'ely connected with said turbine shaft, a centrifugalelemcni, outside of the casing and connections between said element andsaid shafts adapted to move said turbine shaft.

3. The combination with a casing having a fluid jet therein and aturbine wheel in th casing and cooperating with the jet, of governormechanism comprising, a turbine shaft slidable in the casing, a drivenshaft loosely connected with said turbine shaft, a centrifugal clementoutside of the casing, and a driving connection between said shafts andcontrolled by said element adapted to move said turbine shaft.

4. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, a turbine shaft slidable in the casing, a drivenshaft loosely connected with said turbine shaft, a (tentrifugal element,and a flexible frame connecting said shafts and engaging said elementadapted for expansion to move said turbine shaft.

5. The combination with a CZlSll'l'gllfiVlllg a fluid jettherein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, a turbine shaft slid'able in tie casing, a drivenshaft loosely connected with .aid turbine shaft, a centrifugal element,yielding means engaging said shafts adapted to normally retain the wheelin operative position, and flexible connections between said element andsaid shafts a'daptedto move said turbine shaft.

6; The combination with'a casing having a' fluid jet therein a turbinewheel in the drive-1* by .1 the wheel and in fixed alinement, ofgovernor mechanism comprising, a turbine shaft slidable with respeettothe casing, a centrifugal element, and connections between said elementand said shaft adapted to slide said shaft without disturbing thealinement of the power-transmitting member.

7. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, a turbine shaft slidable with respect to thecasing, a centrifugal element outside of the casing, a driven shafthaving a telescopic connection with said turbine shaft, and connectionsbetween said element and said shafts adapted to slide said turbineshaft.

8. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising a turbine shaft, slidable with respect to thecasing, a centrifugal element, a driven shaft having a loose connectionwith said turbine shaft, and a flexible frame connecting said elementwith said shafts and adapted to be flexed by said element to slide saidturbine shaft.

9. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, a turbine shaft slidable with respect to thecasing, a centrifugal element, a driven shaft having a loose connectionwith said turbine shaft, and a pair of flexible plates connecting saidelement with said shafts and adapted to be flexed by said element toslide said turbine shaft.

10. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, a turbine shaft shdable with respect to thecasing, a centrifugal element, a driven shaft having aloose connectionwith said turbine shaft, a flexible frame connecting said element withsaid shafts and adapted to be flexed by said element to slide saidturbine shaft, and resilient means for returning said turbine shaft.

11. The combination with a casing having a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of governormechanism comprising, an extensible turbine shaft 'sli'dable into andout of the casing, a centrifugal element, and connections between saidelement and said shaft adapted to slim said shaft.

12. The combination with a casing haw ing a fluid jet therein and aturbine wheel in the casing and cooperating with the jet, of.

governor mechanism comprising an extensible turblne shaft shdable intoand out of the casing, a centrifugal element outside of Certificate ofCorrection.

It is hereby certified that in Letters Patent No. 1,586,203, granted May25, 1926, upon the application of Carl Kiester of Yeager, Oklahoma, foran improvement in Power Generators, an error appears in the printedspecification requiring correction as follows: Page 2, lines 87 to 289,claim 2, strike out the Words and a poWe' transmitting member driven bythe wheel and in fixed alinement; and the-t the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office.

Signed and sealed this 29th day of June, A. D. 1926.

[SEAL] M. J'. MOORE,

v Acting Commissioner of Patents.

